
Tunnel Light Marathon
The Tunnel Light Marathon is a fast, USATF-certified Boston Qualifier featuring a unique 2.4-mile segment through a dark mountain tunnel and a scenic downhill finish. Course Highlights The Tunnel Light Marathon offers a unique and breathtaking course that takes runners through the heart of the Cascade Mountains. The undisputed highlight of the race is the Snoqualmie Tunnel, a 2.4-mile stretch of absolute darkness that begins shortly after the halfway point. Runners are required to carry a headlamp or light source […]
























